Catch-basin.



1). '11. PIPER. CATCH BASIN.. APPLIOATION FILED MAY 25, 1912.

1,066,316. I Patented Ju1y1,1913.

Wiimmwo David fZPz'per UNT FFTOE.

DAVID H. PIPER, OF GELINA, OHIO.

CATCH-BASIN.

App1ication filet11VIay 25, 1912 sefiaino. 699,683.

To all whom it may concern Be it known that .1, DAVID H. PIPER, a citizen of the United. States, residing at Celina, in the county of Mercer and State of Ohio, have-inventednew and useful Improvements in Catch-Basins, of which the following is a specification.

This invention is an improved catch basin or sewer trapwhich, while permitting water to flow freely to a sewer or the like, serves to effectually prevent the escape of noxious gases from the sewer, the invention consistmg 1n the construction, comblnation and arrangement of devices hereinafter described and claimed.

The accompanying drawing is a longitudinal sectional view of my invention, showing my improved catch basin or sewer trap used in connection with an inclosing box or casing.

In accordance with my invention, I provide a frame 1, which is rectangular in form and comprises a vertical wall 2 and a base 3 which projects from the outer side of the wall. The pavement of the walk, gutter or street in which the trap or catch basin is used is formed around the said frame and bears on the base thereof, leaving the upper edge of the wall 2 exposed. The basin 4: fits in the wall of the frame 1 and is provided at its upper side with an outwardly extending surrounding flange 5 which bears on the upper edge of the wall of the frame. The sides of the basin are here shown as converging downwardly as at 6 and the bottom 7 of the basin is shown as nearly flat and providedwith a central discharge opening 8 which also extends through an enlargement 9 on the under side of the bottom of the basin, the said enlargement presenting an inclined lower face 10 which forms the seat for a valve 11 which is adapted to open therefrom and close against the same. At one side of the enlargement 9 are a pair of downwardly extending spaced ears 12 between which is pivoted a lever 13, the pivot of the lever being indicated at 14:. One end of the lever is pivoted as at 15 between a pair of cars 16 which are arranged medially of and project downwardly fromthe valve. The outer end of the lever forms an arm 17 on which is arranged an adjustable weight 18. The function of this weight is to keep the valve normally closed and by adjusting the weight the valve may be so arranged as to open Specification of Letters Patent.

Patented J u ly 1, 1913.

downwardly at any desired pressure. Owmg to the fact that the valve'is kept normally closed by the weight, noxious gases are prevented from escaping from the sewer in connection with which the trap'is used. 'Whenwater accumulates in the basin to the extent required to overcome the resistance of the valve, under the influence of the weight, the valve opens so as to permit the passage of water from the basin to the sewer and the valve will stay open as long as there is a sufiicient pressure of water in the basin and above the valve but when the pressure of the water diminishes the valve is immediately reclosed by the action of the weight and, hence, no gas can escape. A grating 19 is provided which covers the basin and is seated in a recess 20 which runs around the inner side of the walls thereof. The grating can be readily removed to permit access to the basin and the latter can be readily removed from the frame 1 to afford access to the sewer. 21 which is open on its lower and upper sides and the side walls of which are adapted to fit around the walls of the frame 1 and to bear on the flange 3 thereof. One of the walls of this box or casing is provided with an opening 22 to permit the flow of water to the trap.

Opposite walls of the box or casing are provided on their opposing sides, near their upper edges with supporting flanges 23 on which a detachable cover or lid 24: is placed, this cover or lid fit-ting within the walls of I also provide a box or casing V the box or casing, as shown. This lid may be readily removed when desired and the box or casing may be also removed from the frame 1. p

lVhile I have herein shown and described the preferred form of my invention, I would have it understood that other modifications may be made in the form, proportion and construction of the several parts, without departing from the spirit of my invention, and within the scope of the appended claim.

The herein described sewer trap comprising a frame having side walls, and a base flange projecting outwardly from the said walls, a basin detachably fitted in the frame having supporting flanges at the upper sides of its side walls bearing on the upper edges of and having shoulders abutting against the inner sides of the walls of the frame, the bottom of the said basin having a discharge opening and also having a downwardly extending enlargement through Which said opening extends, a valve normally closed against the lower side of the enlargement and adapted to be opened by water pressure from above, a grating seated in the upper side of the basin and removable therefrom, in combination with a box or casing open at its upper and lower sides 10 having Walls bearing around those of the frame and resting on the base flange thereof, one of the said Walls having an opening above and to admit Water to the basin, and a top or cover detachably secured to the upper side of the said box or casing.

In testimony whereof I afiix my signature in presence of tWo Witnesses.

DAVID H. PIPER.

\Vitnesses:

THEODORE KIsER, G. I. THOMAS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

